The list has been compiled by TNHawke I have just coded it in to the wiki.

Breed Only creatures

Each of the following creatures can only be obtained by breeding other creatures. Some creatures are more willing to make babies than others, so be patient and keep trying.

Each Post will include an image of the egg, hatchling and adult images, side art if available, the time of release, the artist who drew it, the common abbreviations you may see, breeding notes and any additional information it may be useful to know.

Breeding Notes: All colors of Capricorns are interbreedable with each other, with a 50/50 chance of resulting in either parent's color.

Additional Information: The chances of Koi and Ibex pairs resulting in capricorns is fairly low.

The purple type is called Amethyst (the most common)

The blue ones are Tidal (the second most common)

The white and pink are Meridian (and the least common)

The black and gold are Hallow (the second least common)

Shop Born Creatures

Each of the following creatures can be found in either Remy's Inn, or in the Trading Post. The Trading Post specifically has eggs from more Northerly locales such as Arkene.

Each Post will include an image of the egg, hatchling and adult images, side art if available, which of the shops the creature can be found in, the cost in gold, the time of release, the artist who drew it, the common abbreviations you may see, breeding notes and any additional information it may be useful to know.

Tenera Dog

Stream Born Creatures

Each of the following creatures can be found in the Stream. They are the most common and easy to acquire creatures. When a new creature is released it is generally extremely difficult to catch for the first few days, and slowly becomes easier over the following weeks until another new creature is released.

Each Post will include an image of the egg, hatchling and adult images, side art if available, the time of release, the artist who drew it, the common abbreviations you may see, breeding notes and any additional information it may be useful to know.

Additional Information:
All Gryphon from the stream appear identical, when hatched the hatchlings are either brown or grey in color. When they mature the brown hatchlings become either Brown or Gold adults; the grey hatchlings mature to grey or balck adults.

Brown hatchlings are often called Light and grey hatchlings are called dark.

Telvian Panther

Additional Information: Due to a characteristic of the panthers listed in their description, each stage of the Panthers is slightly transparent. This is most noticeable in eggs floating down the stream (or if you try to post the sprite against different colored backgrounds)

Anaugi

Additional Information: The Anaugi's are referred to as "cookies" because of the egg's resemblance to a chocolate chip cookie. Yes, their name is "Iguana" spelled backwards. They were able to breed chestnut kirin for around ten minutes directly after their breeding was enabled. The glitch was reported soon after, and the glitch kirin were removed from the system.

Farir

Additional Information: The Farir was the second creature to be released from the September 2009 Creature Contest. It was submitted by pertwila, and is the first of the group of winners chosen by the artists to be released.

Quest Born Creatures

Emerald Wyvern

Additional Information:
This is the first Quest Creature released on MagiStream. This Quest was also known as [[[Quest_Walkthroughs# QUEST_1_-_Mordecai.27s_Foul_Concoction|Mordecai's Foul Concoction]]].
This is also the only creature that can breed with a donation creature.

Naga Ally

They were first released in November 24 or 25, 2009. They entire quest coding got wiped out in the Site explosion. They were re-released in December.

They are the not pets but Allies, and came to the Keeps as adults.

This Quest is known as [[[Quest_Walkthroughs# QUEST_4_-_The_Foreign_Scroll|The Foreign Scroll]]]

Donation Creatures

Each of the following creatures can be initially purchased by donating real money to the site. Money is used to pay for servers and bandwidth and to pay the artists for their hard work, and other site maintenance costs.

Donations to the site result in Crystal Shards at a rate of $1 = 1 Shard. The shards themselves are non-transferable.

Donation creatures are currently cycled on a monthly basis, with one set being retired and a new one becoming available at the beginning of the month, and another set in the middle of the month
First of the month creatures cost 5 and 3 shards, while mid-month creatures are only 2 shards.

There are usually 2 slightly different creatures (often variants of the same sprite) for the 1st of the month creature, and just one for the mid-month, although any of them may have gender differences in the sprites.

Donation pets are not able to reproduce, so once they are retired, only those already purchased may remain in circulation. While they tend to be resold by players for gold, the price rises exponentially once they are retired, and the longer it has been since they were retired, the fewer there are available, and the harder they are to come by.

Each Post will include an image of the egg, hatchling and adult images, side art if available, the time of release, the artist who drew it, the common abbreviations you may see and any additional information it may be useful to know.

Gold Crystalwing

Additional Information: This was the first donation pet available. This is also the rarest of donation pets as there were only a little more than 1000 players total when they were available for purchase, so there were very few people to buy them.

Dark Unicorn

Additional Information: This was the second donation pet to be released. Although there were more initially purchased, it seems to be more highly sought after than the Crystalwings, simply because it is a Unicorn.

Unicorn (Light)

Additional Information: This was the second donation pet to be released. Although there were more initially purchased, it seems to be more highly sought after than the Crystalwings, simply because it is a Unicorn.

Void Dragon

Additional Information: When the Dragons were initially released, they had some anatomical oddities and lacked much in the way of shading and so appeared monochromatic and flat. Rijolt (with Tristan's permission) altered them slightly, making them the beautiful sprites you see now. They, like the Unicorns, have had a high demand, with low supply.

Celestial Dragon

Additional Information: When the Dragons were initially released, they had some anatomical oddities and lacked much in the way of shading and so appeared monochromatic and flat. Rijolt (with Tristan's permission) altered them slightly, making them the beautiful sprites you see now. They, like the Unicorns, have had a high demand, with low supply.

A Celestial Dragon is mentioned in one of the legends of the Magistream world, and her name is a component of one of the quests.

Temple Cat

Additional Information: This was the first mid-month donation pet offered. Oddly enough, it is probably the single most highly sought after donation pet. Look at how cute the egg and kitten are, and how lovely the adult… can you blame people for wanting them?

Amarth Alagos

Additional Information: This was the first creature where the darker color was less expensive than the light. It was also the first set of donation pets that were not basically recolors of the same sprite.

Coria Alagos

Additional Information: This was the first creature where the darker color was less expensive than the light. It was also the first set of donation pets that were not basically recolors of the same sprite.

Adremeri

Special Creatures

Each of the following creatures are special. These are rare, limited creatures, usually obtained during an event, such as a holiday. Some of them are breedable, some are not.

Each Post will include an image of the egg, hatchling and adult images, side art if available, the time of release, how it was obtained, the artist who drew it, the common abbreviations you may see, breeding notes and any additional information it may be useful to know.

Additional Information: There was an enormous hullaballoo around the release of these creatures. The Voltairian Alphyns were released at the same time as all the other Alphyns. Since the creature count was up by one more than creatures found, players were trying all manner of breeding and searching, looking for the answer to some kind of riddle. The original information given out by the players who received them was basically,** "Don't TRY to get it."** Damien (one of the admins of Magistream) finally put an end to the wondering and stated outright that it was a gift to recognize certain Magi. Ironically, this backfired into a near flamefest as players with out one bawwwed that it was not fair and they would never be recognized, no matter how nice they were. Things finally settled down, and a few have been released since.

This was the first time that Drama Llama made its appearance on the MagiStream Forums.

Additional Information: For a few days prior to Halloween, and partly through November 1st, the stream was 'flooded' with Decessus eggs. They were the only eggs available in the stream during this time. Some referred to this flood as the Plague, or Infestation.

Approximately one in every ten Decessi would be born 'dead'. The sprite was upside down and automatically frozen. Freezing a 'live' hatchling would not change it into a 'dead' one.

Additional Information: The quiz would pop up either at log in, or randomly while browsing the site if the player was already logged in. The reason it popped up for some and not for others was not disclosed aside from it being stated that the wyrms were intended to be rare. Once at the quiz page, the player could not navigate to any other page on Magistream until they had chosen an answer.

Additional Information: The quiz would pop up either at log in, or randomly while browsing the site if the player was already logged in. The reason it popped up for some and not for others was not disclosed aside from it being stated that the wyrms were intended to be rare. Once at the quiz page, the player could not navigate to any other page on Magistream until they had chosen an answer.

White Elks

How Obtained: A gift from Magistream to players who gave an undisclosed number of gifts to others.

Artist: BettyxMe and GlassWalker

Common Abbreviation: They are called Belled elks or chained elks depending on what they possess.
The belled elk are also called collared elks by some people

Breeding Information: These creatures are breedable. All types of White Elk are interbreedable.

Additional Information: The egg is the same and only whether the hatchling has a belled collar or not determines the type of White Elk

The type and gender of White Elk obtained was random. These original Elks were dubbed "Gift Born", and are highly sought after, as not every player got one, and those that did received only one. Several groups arose to aid with finding temporary and permanent partners for breeding purposes.

The Elk, like the Voltairian Alphyns, created an uproar of "That's not fair!" from players who did not receive one. Some had given gifts, but not enough to meet the undisclosed amount. Some players were away and unable to log in during the time of gifting. Some players managed to miss the threads discussing it, the 'gift' option on their eggs, and the tree at the bottom of their keeps, and so did not give any gifts. Things finally quieted down, and bred elk are now being sold so that everyone eventually has a chance at them.

Males of both types have antlers.
Females belled elk has a collar like the male, the female chained elk is completely unadorned.